IMO, failing to do the prescribed brake fluid maintenance is Really Dumb. If you think of nothing else about brake fluid, think about this. Very Expensive ABS Components Corroded by Waterlogged Brake Fluid.
Bosch brake fluid seems to work well enough.
When I was using Dot4, I relied on Pentosin Now I use Bosch Dot5.1
Bosch ESI6 or any other DOT5.1 for better ABS performance and longevity of braking components.
Bosch ESI6 or any other DOT5.1 for better ABS performance and longevity of braking components.
It is a low viscosity brake fluid though, so that's interesting, and says it's compatible with brake systems as far back as the 1990s so should be fine in our cars. Mine turns off now in about 5 seconds. Bosch ESI6 is the next generation brake fluid. It exceeds all current DOT standard requirements (FMVSS 116) First to simultaneously combine both low viscosity and high wet boiling point at its operation ESI coverage includes the majority of all brake systems launched since 1990; Use with DOT 3, DOT 4, or DOT 5.1; Coverage excludes DOT 5 silicone based brake fluid which is limited to military and racing applications Excellent lubricity properties to prevent wear of components in the brake system and reduce noise Longer lasting: 100% longer than DOT 3, 50% longer than DOT 4, and 10% longer than DOT 5.1 (with 30% lower viscosity) Wet boiling point ~ 365 DegreeF/Viscosity at -40 DegreeC ~ 670mm2/s One size fits all: As Bosch ESI6 can be used to substitute almost any brake system launched since 1990 Bosch ESI6 helps reduce the stock of brake fluids thus saving storage space Featuring replacement intervals of 3 years Bosch ESI6 reduces corrosion
I use the Bosch brake fluid and have been happy with its boiling temp, it’s availability and cost.
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The brand is registered in Germany.
In March 2026, PartReview does not yet have a formed opinion of Bosch brake fluid. You can help by adding a review for Bosch brake fluid.
Currently there are 7 reviews and 22 votes. Average rating — 4.4 out of 5. Vote balance: 20 up, 2 down.
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